RAL Tier1 weekly operations castor 28/7/2017

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Draft agenda

1. Problems encountered this week

2. Upgrades/improvements made this week

3. What are we planning to do next week?

4. Long-term project updates (if not already covered) 

  1. SL7 upgrade on tape servers
  2. SL5 elimination from CASTOR functional test boxes and tape verification server
  3. CASTOR stress test improvement
  4. Generic CASTOR headnode setup

5. Special topics

6. Actions

7. Anything for CASTOR-Fabric?

8. AoTechnicalB

9. Availability for next week

10. On-Call

11. AoOtherB

Operation problems

cmsDisk ran out of space causing problems on CMS production

Long standing issue of SAM test failures for CMS that needs investigation

FTS upgrade in CERN combined with the a severe network outage on Tuesday caused failed transfers fot all VOs

40% of the total transfers out of atlasScratchDisk failed and 90% of them were associated with the globus-xio error message. Need to investigate whether the cause is related to specific Atlas workflow that uses atlasScratchDisk or/and the obsolete hardware

John is moaning of failing regional Nagios tests for Gen

Operation news

The Stack Clash patch was applied on all Tier-1 CASTOR instances

Plans for next week

Firmware upgrade on the rest of OCF14 disk servers

Long-term projects

SL6 upgrade on functional test boxes and tape verification server: aquilon configuration is complete for the functional test box, all Nagios tests are in place and a creation of HyperV VM is undeway to replace the old box. The test for tape verification server is pending.

Tape-server migration to aquilon and SL7 upgrade

CASTOR stress test improvement

Configure multiple instances of a CASTOR generic headnode

Drain and decomission/recomission the 12 generation disk servers

Special actions

Future CASTOR upgrade methodology: CERN need to provide RAL with a customed DB downgrade script for the on-the-fly CASTOR upgrade procedure

Actions

Ensure that Fabric is on track with the deployment of the new DB hardware

RA to ensure that proper Nagios checks are in place for the xroot manager boxes

GP to talk to AL about service ownership/handover of the xroot manager boxes

RA to continue nagging Martin to replace Facilities headnodes

Ensure that httpd on lcgcadm04 is up and running and the machine points to the right DB RT191377

Staffing

All in

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